src/power/power.h

   1 /*
   2  * deviced
   3  *
   4  * Copyright (c) 2022 Samsung Electronics Co., Ltd.
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the License);
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18
  19 #ifndef __POWER_STATE_MANAGER_H__
  20 #define __POWER_STATE_MANAGER_H__
  21
  22 #include <stdio.h>
  23 #include <stdint.h>
  24 #include <glib.h>
  25
  26 #include <libsyscommon/ini-parser.h>
  27 #include <system/syscommon-plugin-deviced-power-interface.h>
  28
  29 #include "shared/log-macro.h"
  30 #include "shared/device-notifier.h"
  31
  32 struct trans_info {
  33         uint64_t curr;
  34         uint64_t next;
  35         int reason;
  36         const void *data;
  37 };
  38
  39 void power_state_manager_init(void *data);
  40
  41 static inline uint64_t convert_action_string_to_power_state(const char *str)
  42 {
  43         if (MATCH(str, "start"))
  44                 return DEVICED_POWER_STATE_START;
  45         else if (MATCH(str, "sleep"))
  46                 return DEVICED_POWER_STATE_SLEEP;
  47         else if (MATCH(str, "normal"))
  48                 return DEVICED_POWER_STATE_NORMAL;
  49         else if (MATCH(str, "poweroff"))
  50                 return DEVICED_POWER_STATE_POWEROFF;
  51         else if (MATCH(str, "reboot"))
  52                 return DEVICED_POWER_STATE_REBOOT;
  53         else if (MATCH(str, "exit"))
  54                 return DEVICED_POWER_STATE_EXIT;
  55         else if (MATCH(str, "current"))
  56                 return DEVICED_POWER_STATE_ALL;
  57
  58         _W("Invalid power state=%s", str);
  59
  60         return DEVICED_POWER_STATE_UNDEFINED;
  61 }
  62
  63 static inline const char *state_name(uint64_t state)
  64 {
  65         if (state == DEVICED_POWER_STATE_START)
  66                 return "POWER_STATE_START";
  67         if (state == DEVICED_POWER_STATE_NORMAL)
  68                 return "POWER_STATE_NORMAL";
  69         if (state == DEVICED_POWER_STATE_SLEEP)
  70                 return "POWER_STATE_SLEEP";
  71         if (state == DEVICED_POWER_STATE_POWEROFF)
  72                 return "POWER_STATE_POWEROFF";
  73         if (state == DEVICED_POWER_STATE_REBOOT)
  74                 return "POWER_STATE_REBOOT";
  75         if (state == DEVICED_POWER_STATE_EXIT)
  76                 return "POWER_STATE_EXIT";
  77         if (state == DEVICED_POWER_TRANSIENT_STATE_SUSPENDING_EARLY)
  78                 return "POWER_TRANSIENT_STATE_SUSPENDING_EARLY";
  79         if (state == DEVICED_POWER_TRANSIENT_STATE_SUSPENDING)
  80                 return "POWER_TRANSIENT_STATE_SUSPENDING";
  81         if (state == DEVICED_POWER_TRANSIENT_STATE_SUSPENDING_LATE)
  82                 return "POWER_TRANSIENT_STATE_SUSPENDING_LATE";
  83         if (state == DEVICED_POWER_TRANSIENT_STATE_RESUMING_EARLY)
  84                 return "POWER_TRANSIENT_STATE_RESUMING_EARLY";
  85         if (state == DEVICED_POWER_TRANSIENT_STATE_RESUMING)
  86                 return "POWER_TRANSIENT_STATE_RESUMING";
  87         if (state == DEVICED_POWER_TRANSIENT_STATE_RESUMING_LATE)
  88                 return "POWER_TRANSIENT_STATE_RESUMING_LATE";
  89         if (state == DEVICED_POWER_STATE_ALL)
  90                 return "POWER_STATE_ALL";
  91
  92         return "POWER_STATE_INVALID";
  93 }
  94
  95 static inline int is_poweroff_state(uint64_t state)
  96 {
  97         return !!(state & (DEVICED_POWER_STATE_POWEROFF | DEVICED_POWER_STATE_REBOOT | DEVICED_POWER_STATE_EXIT));
  98 }
  99
 100 static inline void power_request_change_state_strict(uint64_t curr, uint64_t next, int reason, const void *udata)
 101 {
 102         struct trans_info ti = { curr, next, reason, udata };
 103         GList l = { &ti, NULL, NULL };
 104
 105         syscommon_notifier_emit_notify(DEVICE_NOTIFIER_REQUEST_TRANSITION_STATE, &l);
 106 }
 107
 108 static inline void power_request_change_state(uint64_t next, int reason)
 109 {
 110         power_request_change_state_strict(DEVICED_POWER_STATE_ALL, next, reason, NULL);
 111 }
 112
 113 uint64_t power_get_state(void);
 114 int add_change_state_wait(pid_t pid, guint64 state);
 115 int is_there_pending_transition(void);
 116 void remove_change_state_wait(pid_t pid, guint64 state);
 117 int confirm_change_state_wait(pid_t pid, guint64 transition_id);
 118 int cancel_change_state_wait(pid_t pid, guint64 transition_id);
 119
 120 #endif //__POWER_STATE_MANAGER_H__